diff --git a/Doc/library/unittest.mock.rst b/Doc/library/unittest.mock.rst
index 091562cc9aef98..20ce709c9c1da8 100644
--- a/Doc/library/unittest.mock.rst
+++ b/Doc/library/unittest.mock.rst
@@ -1420,7 +1420,7 @@ patch
 
     The key is to do the patching in the right namespace. See the section `where to patch`_.
 
-.. function:: patch(target, new=DEFAULT, spec=None, create=False, spec_set=None, autospec=None, new_callable=None, **kwargs)
+.. function:: patch(target, new=DEFAULT, spec=None, create=False, spec_set=None, autospec=None, new_callable=None, *, unsafe=False, **kwargs)
 
     :func:`patch` acts as a function decorator, class decorator or a context
     manager. Inside the body of the function or with statement, the *target*
@@ -1485,6 +1485,10 @@ patch
     By default this is ``'test'``, which matches the way :mod:`unittest` finds tests.
     You can specify an alternative prefix by setting ``patch.TEST_PREFIX``.
 
+    Patch will raise a :exc:`RuntimeError` if passed some common misspellings of
+    the arguments autospec and spec_set. Pass the argument *unsafe* with the
+    value ``True`` to disable that check.
+
     Patch can be used as a context manager, with the with statement. Here the
     patching applies to the indented block after the with statement. If you
     use "as" then the patched object will be bound to the name after the
@@ -1622,7 +1626,7 @@ work as expected::
 patch.object
 ~~~~~~~~~~~~
 
-.. function:: patch.object(target, attribute, new=DEFAULT, spec=None, create=False, spec_set=None, autospec=None, new_callable=None, **kwargs)
+.. function:: patch.object(target, attribute, new=DEFAULT, spec=None, create=False, spec_set=None, autospec=None, new_callable=None, *, unsafe=False, **kwargs)
 
     patch the named member (*attribute*) on an object (*target*) with a mock
     object.
@@ -2404,7 +2408,7 @@ arguments are a dictionary:
 create_autospec
 ~~~~~~~~~~~~~~~
 
-.. function:: create_autospec(spec, spec_set=False, instance=False, **kwargs)
+.. function:: create_autospec(spec, spec_set=False, instance=False, *, unsafe=False, **kwargs)
 
     Create a mock object using another object as a spec. Attributes on the
     mock will use the corresponding attribute on the *spec* object as their
@@ -2421,6 +2425,10 @@ create_autospec
     spec for an instance object by passing ``instance=True``. The returned mock
     will only be callable if instances of the mock are callable.
 
+    :func:`create_autospec` will raise a :exc:`RuntimeError` if passed some common
+    misspellings of the arguments autospec and spec_set. Pass the argument
+    *unsafe* with the value ``True`` to disable that check.
+
     :func:`create_autospec` also takes arbitrary keyword arguments that are passed to
     the constructor of the created mock.